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Add 'llvm.expect' intrinsic description. 

llvm-svn: 145792
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Jakub Staszak 2011-12-04 18:29:26 +00:00
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commit 5fef792d8c
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llvm/docs/LangRef.html
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@ -306,6 +306,8 @@
'<tt>llvm.stackprotector</tt>' Intrinsic</a></li>
<li><a href="#int_objectsize">
'<tt>llvm.objectsize</tt>' Intrinsic</a></li>
<li><a href="#int_expect">
'<tt>llvm.expect</tt>' Intrinsic</a></li>
</ol>
</li>
</ol>
@ -8205,11 +8207,35 @@ LLVM</a>.</p>
compile time.</p>
</div>
<!-- _______________________________________________________________________ -->
<h4>
<a name="int_expect">'<tt>llvm.expect</tt>' Intrinsic</a>
</h4>
<div>
<h5>Syntax:</h5>
<pre>
declare i32 @llvm.expect.i32(i32 &lt;val&gt;, i32 &lt;expected_val&gt;)
declare i64 @llvm.expect.i64(i64 &lt;val&gt;, i64 &lt;expected_val&gt;)
</pre>
<h5>Overview:</h5>
<p>The <tt>llvm.expect</tt> intrinsic provides information about expected (the
most probable) value of <tt>val</tt>, which can be used by optimizers.</p>
<h5>Arguments:</h5>
<p>The <tt>llvm.expect</tt> intrinsic takes two arguments. The first
argument is a value. The second argument is an expected value, this needs to
be a constant value, variables are not allowed.</p>
<h5>Semantics:</h5>
<p>This intrinsic is lowered to the <tt>val</tt>.</p>
</div>
</div>
</div>
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<hr>
<address>